        var btnclose = document.getElementById("btnclose");
        btnclose.onclick = function() {
            document.getElementById("advbox").style.display = "none";
        }


        var catebox = document.getElementById('catebox');
        catebox.onmouseover = function() {
            document.getElementById('cateitemlist').style.display = "block";
        }
        catebox.onmouseout = function() {
            document.getElementById('cateitemlist').style.display = "none";
        }